The purpose of this study is to investigate the measurement of biological variation for colorectal liver metastases using DCE MRI. Such techniques can be used to obtain several parameters relating to microvascular characteristics of tissue. Here we demonstrate the ability to construct statistical similarity functions for these parameters. Key to this process is the construction of an empirical ...

Communication traces help developers of high-performance computing (HPC) applications understand and improve their codes. When run on large-scale HPC facilities, the scalability of tracing tools becomes a challenge. To address this problem, traces can be clustered into groups of processes that exhibit similar behavior. Instead of collecting trace information of each individual node, it then suf...

7 A method for detecting relationships between single-unit spike trains and local %eld potentials (LFPs) was developed and applied to recordings from rat cerebellum. LFPs were repeatedly 9 %ltered with a shifting frequency window. The resulting traces were transformed into peak-time point processes for comparison with spike trains using “relative-phase” analysis (Biol. Cyber11 net., in press). ...

To date, the vast majority of studies in urban areas have been carried out on birds, yet it is not known whether the responses of birds to urbanization are congruent with those of other taxa. In this paper, we compared the responses of breeding birds and carabid beetles to urbanization, specifically asking whether the emerging generalizations of the effects of extreme levels of urbanization on ...

A parametric study of nonlinear seismic response analysis of transmission line structures subjected to earthquake loading is studied in this paper. The transmission lines are modeled by cable element which accounts for the nonlinearity of the cable based on a real project. Nonuniform ground motions are generated using a stochastic approach based on random vibration analysis. The effects of mult...

A major factor in determining the effectiveness of caching in wireless networks is the cache coherency scheme which maintains consistency between mobile stations (MSs) and the server. Since the wireless channel is inherently a broadcast medium, an appropriate cache coherency scheme is one in which the server broadcasts cache invalidation reports (IRs) that contain data update information. Howev...

We proposed[1] nonlinear operators which decompose a changing energy of sound in wavelet domain into three orthogonal components: i.e., loudness and pitch as coherent changes, and timbre as incoherent change. We showed that they could detect the discontinuity of a single sound stream with excellent temporal resolution and sensitivity. In this paper, we extend the coherency principle so that it ...

The present study examined the way in which the perception of motion coherency depends on luminance contrast. Pseudo-plaid patterns were presented to subjects who judged whether coherent motion or component motion of the Gabor patterns was perceived. Michelson contrast, eccentricity, spatial separation, and angular separation between two groups of Gabor patches were varied systematically. When ...